Cooling Requirements; Operating Environment; Power On Environment; Power Consumption And Environmental Information For The Ess - IBM Enterprise Storage Server 2105 E10 Introduction And Planning Manual

Cooling requirements

For cooling, install two fully perforated tiles in front of each ESS. Also install one
fully perforated tile in front of an expansion enclosure and one fully perforated tile at
the back of an expansion enclosure.

Operating environment

The following sections list the environmental operating points and ranges that IBM
recommends for the ESS.

Power on environment

Table 16 gives the operating extremes for an ESS with the power on.
Table 16. Operating extremes with the power on
Altitude
Dry Bulb Temperature
Relative humidity
Wet Bulb Temperature
Table 17 gives the operating points that IBM recommends for an ESS with the
power on.
Table 17. Recommended operating points with the power on
Temperature (See Attention)
Relative humidity (See Attention)
Table 15. Power consumption and environmental information for the ESS
Measurement Units
Electric power kVA
Thermal load BTU/hour
Capacity of Cubic meters per
exhaust (See min (cubic ft per
Note.) min)
Single-phase Milliamps
and three-phase
leakage current
Startup current Amps
Startup current microseconds
duration
Idle and bels
operating-sound
power (LwAd)
Idle and decibels
operating-sound
pressure (LpA)
Note: The ESS takes air in through the front cover and exhausts air from the rear and top.
Models E10 or Models E20 or
F10 F20
3.5 5
11 000 16 000
44.2 (1500) 51.8 (1800)
17 17
100 100
< 200 < 200
7.5 7.5
59 59
0 - 2133 m (7000 ft)
16 - 32°C (60 - 90°F)
20 - 80%
23°C (73°F)
22°C (72°F)
45%
Chapter 3. Installation planning
Models E20 or
F20 with
Expansion
Enclosure
12
40 000
102.7 (3600)
17
100
< 200
Not applicable
Not applicable
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